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Mathematics
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AndrewC
  • Member for 7 years, 3 months
  • Last seen more than 4 years ago
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25
A ring such that $(a+b)^2=a^2+b^2$ and $(a+b)^3=a^3+b^3$
Sep 17, 2018
19
Prove that $\det(AB-BA)=0$
Dec 26, 2017
11
Prove that $\det(AB-BA)=0$
Dec 26, 2017
10
A determinant involving a polynomial is $0$
Mar 31, 2018
10
Are there matrices such that $(AB-BA)^{71}=I_{69}$?
Mar 28, 2018
9
Property of a continuous function in the neighborhood of a point
Apr 1, 2018
7
Complex numbers involving roots of unity
Apr 15, 2017
6
For which values of $a$ is $f$ primitivable?
Nov 8, 2018
6
Finding $\lim x_n$ when $\left( 1+\frac{1}{n}\right)^{n+x_n}=1+\frac{1}{1!}+\frac{1}{2!}+\dots+\frac{1}{n!}$
Feb 11, 2018
6
If $f(f(x))+f(x)=x^4+3x^2+3$, prove that $f$ is even
Mar 20, 2018